Horne (also Horn, Hoorn or Hoorne) is a small historic county of the Holy Roman Empire in the present day Netherlands and Belgium. It takes its name from
Irmgard of Kleve. He was opposed by Gerard II's sister Johanna van Horne, married to Gijsbrecht III of Abcoude. The LordshipofHorne, and the Lordshipof Kortessem
Lordshipof Geldrop on loan from the Teutonic Order. Claes van der Dussen, commander of Alden Biesen acted on behalf of the order. Philip van Horne belonged
Flanders. He was a son of Arnold ofHorne and Joanna of Hondschoote. From his father he inherited the Lordshipsof Baucigny, Montcornet, Heeze and Leende
Provinces. They were: the Lordshipof Groningen and of the Ommelanden the Lordshipof Friesland the Lordshipof Overijssel the Duchy of Guelders (except its